Most likely (4) anodes would do the trick just as well.
Since I plate copper, nickel and Copy Chrome (and the nickel anodes are way more expensive then the copper anodes) I use (2) 4 x 6 anodes in a two gallon tank, lots of large air bubbles and the rotation device.
I have never, ever, had to buff the nickel or copy chrome after plating over the copper with my set up.
The parts look just like a mirror right out of the tank (of course I go to great pains to insure the base copper looks the same first thru a lot of manual finishing).
BTW: The copper comes out pink and as smooth as a babys butt and is easy to buff with the same set up.
George W.
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