Arectangular piece of aluminum foil (density = 2.700 g/cm*3) is 25.70 cm wide and 28.32 cm long. it has a mass of 7.291 g. what is the thickness of the foil (height) in cm? put answer in correct sig fig.

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

it's filtration, but this is an assumption so my apologies if i got this