The total charge a household battery can supply is given in units of \(\mathrm{mA} \cdot \mathrm{h}\). For example, a \(9.0 \mathrm{~V}\) alkaline battery is rated \(450 \mathrm{~mA} \cdot \mathrm{h}\), meaning that such a battery could supply a \(1 \mathrm{~mA}\) current for \(450 \mathrm{~h}\), a \(2 \mathrm{~mA}\) current for \(225 \mathrm{~h}\), etc. How much energy, in joules, is this battery capable of supplying?