A microprocessor is in the shape of a cube where the sides are 5 mm in length.

1. Convert the container dimensions to millimetres.

Since $1\text{ cm}=10\text{ mm}$,

$10\text{ cm}=100\text{ mm}$, $2\text{ cm}=20\text{ mm}$ and $8\text{ cm}=80\text{ mm}$.

2. Find the number of cubes that fit along each dimension and multiply.

Each microprocessor is a cube of side $5\text{ mm}$.

Number that fit:
$\frac{100}{5}\times \frac{20}{5}\times \frac{80}{5}=20\times 4\times 16=1280.$

1. Find the surface area of the model using the area scale factor.

Scale $10:1$ means the linear scale factor is $10$.

Area scale factor $=10^2=100$.

Surface area of model
$=150\times 100=15000\text{ mm}^2$

2. Convert the model surface area from square millimetres to square centimetres.

Since $1\text{ cm}=10\text{ mm}$,
$1\text{ cm}^2=100\text{ mm}^2$

$15000\text{ mm}^2=\frac{15000}{100}=150\text{ cm}^2$