I guess you have very little experience like me if you are asking that question.
I would expect anywhere from 1 to 3 oz per plant, most likely 1.
In my first grow with 1800W in viparspectra(3x600W) I got only 1 oz per plant. The second one with 3000W(I have added 1200W extra) I am getting from 2 to 3 oz per plant. Ok, to be honest there is only one that has given me 3 oz, others are exactly 2oz and one 20% less than 2oz. it is all trimmed and without long stems.
I still have one plant left in my cabinet but looking at its progress after 8 weeks in flowering I highly doubt it is going to finish at all.
I also chopped four but moved them in pots outside. They have a lot of popcorn buds and I hope I will get more from them under the Sun.