Ultrapure silver is used to make solid state devices such as computer chips. What is the mass in units of grams of a circular cylinder of silver that is $12\mathrm{.}40$ cm long with a radius of $3\mathrm{.}50$ cm $($v $=$

r$2$h$)?$ The density of silver is $10\mathrm{.}50$ g$/$cm$3.$