Whatever you do, do not start settler at 2 population. If you delay settlers until size four, you will produce faster (+6 hammers, -4 food) and gain an insane amount of commerce. I don't know how this works out with worker turns and the really quick floodplains growth, but it should work like a charm.
The problem is, I'm not sure if you've got anything sensible to build meanwhile. Warriors blow, workers and settler stunt production. This is exactly the time that 2xSkirmisher build is so fabulous.
(Somebody else might want to look into the mathematics of growing before settler. If our benifits hadn't mostly been commerce, I think 1st or at least 2nd settler would actually had been quicker.)
Repeating what had already been said, copper will be gained from capitol's border expansion. Your A, atop of the plains hills, can at size 3 spit about 10 hammers, working copper, grass forest and grass hill. This is an awesome non-slavery production site, pretty much the best you can get without extra happiness. You might want to wait with settling this city, seeing as it does little for landgrabbing and has unimpressive lategame potential, but I would have loved to have it spit my skirmishers/axes.