I don't even have that many views yet, so why was it offered?
Also, how much money?
it depends on how many views your videos get
they put ads on your video(s), and the amount depending on how many views you get(aka how many people see the ad), you get money
and YouTube's not going to give you a good amount
so unless you're like RWJ or something and get a good amount of views, it wont be worth making viewers watch ads