Convert cm³ to ft³, then multiply by the density to get the mass in lb, then convert to g.
[tex]8.00\,\mathrm{cm}^3 \cdot \left(\dfrac{1\,\rm in}{2.54\,\rm cm} \cdot \dfrac{1\,\rm ft}{12\,\rm in}\right)^3 \cdot \dfrac{455\,\rm lb}{1\,\mathrm{ft}^3} \cdot \left(\dfrac{0.4536\,\rm kg}{1\,\rm lb}\cdot\dfrac{1000\,\rm g}{1\,\rm kg}\right) \approx \boxed{58.3 \mathrm g}[/tex]
