Heh. Doesn't work like that, I'm afraid. Nothing wrong with adding your copyright info but it won't rocket you to the top.
© piffle! utter piffle, lets find another hole to stuff a keyword! 1) © is not an accessible symbol 2) By the time any spider gets to the bottom your page it does not gather any data. Do it if you really want to...........
I added this: © News Code (markup): to my Site and I am now number 1 for the keyword "news" in google. I just did it like 10 minutes ago.
I thought people don't fall for "get #1 in minutes" bedtime stories anymore...yet... I always get surprised...
AEIOU, -Snark- I almost shot my drink out my nose! That was good! Anyway, I think the OP was using weasel words tying to confuse "the results occurring within mere minutes" with " as a result of a few minutes' work".
Does it also work with 10 keywords ? And what about © keyword1 © keyword2; © keyword3 ... ? :d You should give it a try!