You have a piece of titanium foil which has a density of 4.5 g/cc with a mass of 0.20 grams. The foil measures 6.0 cm x 7.4 cm. What is the thickness of the foil in cm? You have a piece of titanium foil which has a density of 4.5 g/cc with a mass of 0.20 grams. The foil measures 6.0 cm x 7.4 cm. What is the thickness of the foil in cm