Apiece of corroded steel plate was found in a submerged ocean vessel. it was estimated that the original area of the plate was 62.5cm 2 and approximately 2.8k had corroded away during the submersion. Assuming a corrosion penetration rate of 5.1mm/yr for this alloy in seawater. Estimate the time of submersion in years. The density of steel is 7.9g/cm3