kale/church calculation

what size would of  field (very roughly) would we need to grow one kale plant per week per family from Sept to May in a church with 200 families?
approx 8ft x 24ft for one family = 192 sq. ft

for 200 families = 192 sq. ft x 200
= 38400 sq. ft
= 0.88 acre

So we’re probably looking at a field well under an acre in size.