A mild steel tank 60 cm high with a 30 cm x 30 cm square bottom is filled with aerated water up to the 45 cm level and shows a corrosion loss of 350 g over a four-week period. Calculate (a) the corrosion current and (b) the corrosion density associated with the corrosion current. Assume the corrosion is uniform overall surfaces and that the mild steel corrodes in the same way as pure iron.