Yeah, I would say you could. I get pretty close to that. I have 2 15" plants in 2 gallon pots, 4 4" plants in 2 gallon pots and 4 seedlings in small pots sitting on the top edges of the larger pots. So that is 6 large pots and 4 small pots. I'll be buying more lights soon. Right now all I have for veg is a T5 2' 4 bulb setup. I'll probably just get another one of these, one for my mother plants and one for my clones. And one 400w HPS and one 600w HPS for my flowering. I only have the T5 veg and the 400w HPS right now.
Btw, the box that the T5 came in is a great table shelf...