To answer the question about the scale model of the planets, we need to consider the actual diameters of Jupiter and Mercury.
Jupiter has a diameter of approximately 139,820 kilometers, while Mercury has a diameter of about 4,880 kilometers. To find out how many times larger Jupiter is than Mercury, we can divide the diameter of Jupiter by the diameter of Mercury:
\[ \text{Scale Factor} = \frac{\text{Diameter of Jupiter}}{\text{Diameter of Mercury}} = \frac{139,820 \text{ km}}{4,880 \text{ km}} \approx 28.6 \]
So, in a scale model, Jupiter would be approximately thirty times the size of Mercury.
Therefore, the correct response is:
It will be thirty times the size.