Уранці я п’ю склянку води з лимоном.

Yes. Уранці and вранці both mean in the morning.

In modern Ukrainian, у and в often alternate for ease of pronunciation, so the meaning does not change here. In everyday speech, you will hear both forms.

Examples:

• Уранці я працюю.
• Вранці я працюю.

Both mean I work in the morning.

Because уранці already functions as an adverb meaning in the morning.

So Ukrainian says:

• Уранці я п’ю...

not:

• в уранці
• у уранці

English needs in the morning, but Ukrainian often uses this one-word adverb instead.

П’ю is the 1st person singular present tense form of the verb пити = to drink.

So:

• я п’ю = I drink / I am drinking
• ти п’єш = you drink
• він/вона п’є = he/she drinks

In this sentence, it most naturally means a habitual action: I drink.

The apostrophe shows that the ю is pronounced with a y sound at the start: roughly pyu, not a softened пю.

So п’ю is pronounced approximately like:

• p-yu

This is common after certain consonants in Ukrainian, especially labials like п, б, в, м, ф.

Because склянку is the accusative singular form, and it is the direct object of п’ю.

• склянка = nominative, a glass
• склянку = accusative, used after the verb here

So:

• Я п’ю склянку... = I drink a glass...

This is normal for feminine nouns ending in -а:

• книга → книгу
• кава → каву
• склянка → склянку

Because Ukrainian often uses a container/quantity structure:

• склянку води = a glass of water

Here:

• склянку is in the accusative
• води is in the genitive

This is very common after words for containers, amounts, and quantities:

• чашку чаю = a cup of tea
• пляшку молока = a bottle of milk
• ложку цукру = a spoon of sugar

If you were saying I drink water directly, without glass of, then you would usually say:

• Я п’ю воду.

Because з here means with, and in this meaning it normally takes the instrumental case.

So:

• лимон = nominative
• лимоном = instrumental

That is why you get:

• з лимоном = with lemon

More examples:

• чай з молоком = tea with milk
• кава з цукром = coffee with sugar

These are all forms of the same preposition. Ukrainian switches between з, із, and зі mainly for ease of pronunciation.

Here, з лимоном sounds smooth, so з is the natural choice.

You may see:

• з братом
• із сиром
• зі школи

The choice is mostly about sound, not meaning.

You can often leave it out.

Because п’ю already shows 1st person singular, Ukrainian does not always need the pronoun:

• Уранці я п’ю склянку води з лимоном.
• Уранці п’ю склянку води з лимоном.

Both are natural.

Including я can make the sentence a little more explicit or contrastive, but it is not always necessary.

No. Ukrainian word order is quite flexible.

This sentence:

• Уранці я п’ю склянку води з лимоном.

is a natural, neutral way to say it, especially if you want to set the time first: In the morning...

But you could also say:

• Я уранці п’ю склянку води з лимоном.
• Склянку води з лимоном я п’ю уранці.

The basic meaning stays the same, but the emphasis changes:

• sentence-initial Уранці highlights the time
• sentence-initial Склянку води з лимоном highlights what you drink

Because Ukrainian has no articles.

So склянку води can mean:

• a glass of water
• the glass of water

The exact meaning depends on context.

If you want to make one explicit, you can use одну:

• Я п’ю одну склянку води. = I drink one glass of water.

Пити is an imperfective verb.

That makes sense here because the sentence describes a regular, habitual action:

• In the morning I drink a glass of water with lemon.

Imperfective is commonly used for:

• habits
• repeated actions
• ongoing processes

A related perfective verb is випити = to drink up / to finish drinking, but that would not be the normal choice for this kind of general routine statement.

A helpful stressed version is:

Ура́нці я п’ю скля́нку води́ з лимо́ном.

Approximate pronunciation:

• Ура́нці = oo-RAHN-tsi
• п’ю = pyu
• скля́нку = sklyahn-ku
• води́ = vo-DY
• лимо́ном = ly-MO-nom

The most important thing for learners is usually:

• do not forget the y sound in п’ю
• notice the genitive води́
• notice the instrumental лимо́ном