To find the density of the bread, you can use the formula for density:
\[ \text{Density} = \frac{\text{Mass}}{\text{Volume}} \]
In this case, the mass of the loaf of bread is 454 grams, and the volume is 2270 cm³. Plugging in these values:
\[ \text{Density} = \frac{454 , \text{grams}}{2270 , \text{cm}^3} \]
Now, performing the calculation:
\[ \text{Density} \approx 0.200 , \text{grams/cm}^3 \]
Thus, the density of the bread is approximately 0.200 grams/cm³.