How many eggs can a light barahma sit on and hatch???

[ragerkid2]

How many eggs can a Light Barhamas hen sit on and hatch?
I want to hatch a batch of eggs out to one of my hens. But I'm not sure how many to pit underneath of her. I will be buying the eggs for her because I don't have a roo. I posted this on the other forum but Boone replied. I figured it should have
Gone on here sorry moderators.

 

[fshinggrl]

Do you have a hen that went broody or are you just hoping one will?

 

[ragerkid2]

Just one that I hope will.