There is a cuboid container with a square bottom, the side length of the bottom is 8 cm, and the height is 15 cm. Xiao Ming uses this container to measure the volume of a potato. Xiao Ming put some water in the container in advance, and found that the water was still 2 cm away from the mouth of the cup. He tied the potato with a thin thread, then submerged the potato completely into the container, and found that part of the water overflowed; when the potato was taken out, it was measured that the water level dropped by 2.5 cm. So what is the volume of this potato in cubic centimeters? (Thin lines occupy negligible space in water)
有一个底面是正方形的长方体容器，底面边长是8厘米，高为15厘米，小明用这个容器测量一个土豆的体积．小明事先在容器中装了一些水，发现水距杯口还有2厘米．他用细线拴住土豆，再把这个土豆完全沉入容器中，发现有部分水溢出；当把这个土豆取出后，经测量发现水面下降了2.5厘米．那么这个土豆的体积是多少立方厘米？(细线在水中所占空间忽略不计)
<gadget id="calculator">8 * 8 * 2.5</gadget>
<output>160</output>

<result>160</result>