Ok... Something must be wrong here. According to my calculations, it would be 13000 Farads. Heres what I did. the plate area is 650 CM squared. * 2 for teh wax paper. / .1 because its on to of the wax paper. so 1 mm even tyhought its more like .05 cm. in that case itd be 26000 Farads. Somethings not right here. theres no way that's correct.. right?

70 feet² = 65032 cm²

Your telling me that would be 1,300,640 Farads?! Thats a huge amount!

Hi. I left out a factor in the formula, am sorry.

The correct one is here:

 

http://www.imagineeringezine.com/e-zine/capacitance-3.html

 

Miguel