Answer: true.
Step-by-step explanation:
A chalice is a cup used for holding wine during holy Communion. It is a common religious object or say sacred vessel used in Eastern Orthodox Church, Lutheranism, Catholicism and so on.
Something sacred is used to refer to an immortal being, popularly known as God. It can also means something holy which can be a place, a being or an object.
A cup is just a normal utensil used for drinking it for holding content. But if this cup is used in a religion institution asuch as in Catholic churches, Anglican Churches and so on as a chalice, the Cup is then considered to be sacred .