What is the thickness of foil in mm if a package of aluminum foil contains 50ft squared and weighs 8 oz.?
According to Wikipedia, the density of aluminum is 2.70 grams per cubic centimeter near room temperatureDisregarding any coatings or additives to the foil, and assuming that it is made from pure aluminum, we can calculate the thickness from the information given and the densityI also assume you mean 50 square feet, not (50 feet)^2, which is 2500 square feetOne inch is 2.54 centimeters, so 50 square feet is 50 (2.54 12)^2 50 30.48^2 50 929.0304 46451.52 cm^2There are 28.3495 grams per ounce, so 8 oz 8 28.3495 226.796 grams Let T the thickness (in cm) of the foil226.796 g / (46451.52 cm^2 T cm) 2.70 g/cm^3 226.796 g / 46451.52 cm^2 2.70 g/cm^3 T cm (226.796 g / 46451.52 cm^2) / (2.70 g/cm^3) T cm T 0.001848 cm T 0.01848 mm So the thickness is 0.01848 millimeters, or 18.48 micrometersNote that this is a reasonable answer for real-world household aluminum foilAccording to Wikipedia, standard household aluminum foil is typically about 0.016 mm thick and heavy duty household foil is about 0.024 mm thick.
