Is it possible to use a quadcopter to write inscriptions in the sky with smoke?

Question

Quadcopter

There is a kind of sky writing advertising, that is, you order dudes to make an inscription in the sky, they raise planes and smoke at the right time in the right place. It turns out advertising that a lot of people see. Example:

It's quite expensive. Is it possible to use a quadrocopter for such purposes? I attached a can of smoke, recorded the program and that's it - the whole sky is in advertisements. Each student in calm weather will be able to advertise his social network, for example.
Z.Y. When I came up with the idea, I even bought the domain for joy (expiring already).
So the question is: Is it real or not?

Answer 1

No
Airplanes rise to great heights, they write in capital letters
Quadcopter just won’t take away so much smoke