Consider an empty aluminium baking tray with external measurements 12 mm (H) x 485 mm (L) x 350 mm (W), made of aluminium sheet of thickness 2.5 mm, as depicted in Figure 3 below. 2.5 350 mm 485 Height: 12 m "View larger image Figure 3 An aluminium baking tray (not to scale) Length: 485 mm Width: 350mm Thickness: 2.5 mm 12 mm Show description i. Given that the density of aluminium is 2700 kg m, calculate the mass of one of the above baking trays in grams to 2 decimal places. ii. Consider that the price of aluminium used is 3100 per tonne, and take the mass of aluminium in each baking tray as 1252 g. Assuming that each baking tray is sold for 8.50, and that there is no waste in the manufacturing process, estimate the value added from the transformation of a tonne of aluminium sheet into baking trays. Explain each step in your working..