Is could you please correct?
Both are correct.
The first is more direct, and the second is more polite.
Could you please .
gives slightly more room for refusal than Can you please .
Can you or could you difference?
If taken literally, “Can you” is equivalent to asking the person if they’re capable of doing something. “Could you”, on the other hand, implies that the action can be completed under some circumstances by the person.
Would you please meaning?
Used to politely accept what someone has offered to do.
Is could you please rude?
It can be past tense. First of all, “could you please” sounds more polite and less rude. When we say “Can you please…”, the question actually asks the subject whether they are capable of doing something.
Can you or will you?
May implies that you are asking for permission. Can implies that you are questioning somebody’s ability. Will implies that you are seeking an answer about the future.
Could you please vs Would you please?
But I would suppose that “would” is more polite, because it expresses the idea of probability, and of willingness, and of the desire that something be done, whereas “could” is more in the realm of ability (yes I can). And according to the American Heritage Dictionary, “would” is used to make a polite request.